activity
20222026
most citedOn the Rothe-Galerkin spectral discretisation for a class of variable fractional-order nonlinear wave equations

7 citations · 8 across the 4 of their papers we have counts for

collaborators

6 papers

math.NA2026

A nonstandard fractional Jacobi pseudospectral method for weakly regular right-sided Caputo terminal problems

Ibrahem G. Ameen, Magda Hammad, Mohsen Razzaghi +1

Right-sided fractional differential equations arising in terminal value problems present substantial analytical and numerical challenges due to their intrinsic nonlocal structure a…

math.NA2026

Backward log orthogonal functions and their approximation theory

Mahmoud A. Zaky

We introduce a new class of backward logarithmic orthogonal functions and generalized backward logarithmic orthogonal functions, constructed by applying a terminal-endpoint logarit…

math.NA2026

An optimal order fractional backward collocation method for adjoint Volterra integro-differential equations

Mahmoud A. Zaky

This paper develops and analyzes an optimal-order fractional backward collocation method for adjoint Volterra integro-differential equations with weakly singular kernels. The backw…

math.NA2025

Reconstruction of a potential parameter in subdiffusion via a Kohn--Vogelius type functional: Theory and computation

Hamza Kahlaoui, Mourad Hrizi, Abdessamad Oulmelk +3

This work considers the reconstruction of a space-dependent potential from boundary observations in subdiffusion by a stable and robust recovery method. Specifically, we develop an…

math.NA2023★ 7 cited

On the Rothe-Galerkin spectral discretisation for a class of variable fractional-order nonlinear wave equations

Karel Van Bockstal, Mahmoud A. Zaky, Ahmed S. Hendy

In this contribution, a wave equation with a time-dependent variable-order fractional damping term and a nonlinear source is considered. Avoiding the circumstances of expressing th…

math.NA2022★ 1 cited

A two-grid temporal second-order scheme for the two-dimensional nonlinear Volterra integro-differential equation with weakly singular kernel

Hao Chen, Mahmoud A. Zaky, Ahmed S. Hendy +1

In this paper, a two-grid temporal second-order scheme for the two-dimensional nonlinear Volterra integro-differential equation with weakly singular kernel is proposed to reduce th…